Handling Memory Leaks in Large ASP.NET Core Applications with Background Services
I'm currently facing a memory leak issue in my ASP.NET Core 6 application that utilizes `IHostedService` for background tasks. The application runs scheduled jobs that process data and send notifications, but over time, I've noticed that memory usage continues to grow significantly, eventually leading to an OutOfMemoryException. I have a background service set up like this: ```csharp public class NotificationService : BackgroundService { protected override async Task ExecuteAsync(CancellationToken stoppingToken) { while (!stoppingToken.IsCancellationRequested) { // Simulate processing var notifications = await GetPendingNotificationsAsync(); foreach (var notification in notifications) { // Process each notification await SendNotificationAsync(notification); } await Task.Delay(TimeSpan.FromMinutes(1), stoppingToken); } } } ``` I've tried using `Dispose` to clean up resources, especially when dealing with large data sets, but the memory usage still doesn't stabilize. I also added logging to monitor the number of notifications processed and noticed that after a certain threshold, the memory usage spikes. Additionally, I'm using Entity Framework Core 6 to retrieve notifications, and I'm concerned that the context may not be disposed of properly. Here's how I fetch the notifications: ```csharp private async Task<List<Notification>> GetPendingNotificationsAsync() { using (var context = new MyDbContext()) { return await context.Notifications.Where(n => n.Status == "Pending").ToListAsync(); } } ``` Despite wrapping the DbContext in a `using` statement, the issue persists, leading me to suspect that there's more to it. I also checked for event subscriptions that may not be getting unsubscribed properly. Could there be any patterns or best practices I should follow to manage memory in background services effectively? Any insights on identifying the source of the memory leak would be appreciated! Thanks in advance!